While most educators assume that not all students try their best on achievement tests, no current research examines if behaviors associated with low test effort, like rapidly guessing on test items, affect teacher value-added estimates. In this article, we examined the prevalence of rapid guessing to determine if this behavior varied by grade,…

The interaction hypothesis proposes that valid test accommodations benefit only those with disabilities. To evaluate this hypothesis, Grade 3 students with word decoding difficulties identified with dyslexia and average decoders were randomly assigned to take the same version of the Texas reading accountability assessment under accommodated and…